Seachems Liquid Cichlid Lake Salt is a chemically sound blend of salts designed to replicate the natural environment of cichlids. It contains all physiologically essential elements such as magnesium, calcium, sodium, and potassium. It does not contain harmful or unnecessary ingredients such as nitrates, phosphates, arsenic, lithium, or cadmium. Use Seachems Cichlid Trace to restore and maintain important trace elements such as iron, manganese and iodide.